Muffler cut-out



R. scHEm.

MUFFLER\ CUT-OUT.

AEPLICATION FILED APR. l, 1921.

Patented Aug. 8, 1922.

RICHARD SCHED, OF ST. LOUS, MISSOURI.

MUFFLER CUT-OUT.

To all whom 'it may concern.'

Be it known that I, RICHARD Sor-Inn), a citizen of the United States,residing at St. Louis, Missouri, have invented a certain new and usefulImprovement in Muffler Cut- Outs, of which the following is a full,clear, and exact description, suc-h as will enable others skilled in theart to which it appertains to make and use thesame, reference being hadto the accompanying drawings, forming part of this specification.

This invention relates to muflier cut-outs, the objects of the inventionbeing to provide a mufiier cut-out which is made of a onepiece castingand can be secured in position on the exhaust pipe without having boltsor screws seated in said casting and engaging the exhaust pipe.

Another object of the invention is to provide a valve for operationwithin said casting and having its yactuating mechanism mounted on theexterior of said casting so that the mechanism is not subjected to thehigh temperature produced in the casting by the exhaust gases andconsequently is not effected or distorted by said high temperature.

Further objects of the invention are to provide a housing on theunderside of said valve in which is mounted the free end of theoperating arm in such a manner that said valve will align itself withits seat and effectually close the discharge opening, and to provideimproved means whereby said casting will be securely held in position onthe exhaust pipe without employing screws or like fastening devices onsaid casting or on said exhaust pipe.

Filith the foregoing and other objects in View, my invention consists incertain novel features of construction and arrangement of parts,hereinafter more fully described and claimed, and illustrated in theaccompanying drawings, in which- Figure 1 is a front elevation partly insection with my improved muflier cut-out in position on the exhaust pipeof an engine.

Figure 2 is a horizontal section taken on line 2-2 of Figure 1.

Figure 3 is a vertical cross section taken on line 3 3 of Figure 1.

Figure 4 is an end elevation of a split ring used to secure the mufflerin position.

Figure 5 is a detail view on the line 5-5 of Figure 1.

Figure 6 is a detail view of the clamping Specification of LettersPatent.

Patented Aug. 3, 1922.

1921. Serial No. 457,748.

ring showing a modified form of the slotted lugs, whereby the slot canbe closed to re'- tain said ring in engagement with the casting.

Referring by numerals to the accompanying drawings, which illustrate apractical embodiment of my invention, 10' designates the engine'portionof the exhaust pipe and 11 the muflier port-ion thereof. The ends ofthese portions 10 and 11 are. seated in the ends of a tubular casting 12which is provided with an enlarged middle portion 14 having a chamber15. In the underside of this middle portion 14 is arranged a circ-ularopening 16 which is surrounded by an inwardly and upwardly extendingannular flange 17. Opening 16 connects chamber 15 with the atmosphereand is normally closed by a circular valve 18 seated on flange 17. Themarginal flange 18nl of valve 18 is curved downwardly and extends belowthe edge of the upwardly presented flange 17.

rlhe tubular ends of casting 12 are provided with inwardly projectingannular flanges 12El which form seats for the ends of exhaust pipe 11and space said exhaust pipe from casting'12, thereby forming annularchambers 12b which are adapted to be lled with a suitable packing 19 toform an airtight joint between casting 12 and pipes 10 and 11. @ne ofthe annular flanges 12a is extended inwardly into chamber 14 to form aseat 14'L1 and projecting inwardly from the extended portion `of saidflange 12is a lug 2O which limits the inward movement of pipe 11.

Projecting outwardly from the underface of valve 1S is a boxshapedhousing 21, the rear portion of which is open. Extending into thishousing through said rear portion is the free end of fa curved arm 22,-which arm is fixed to a shaft 24 transverselyj ournalcd in lugs 25projecting downwardly from the rear end of casting 12. AA coiled spring26 having one end anchored in one of the lugs 25 and its other endsecured to arm 22 is positioned on shaft 24 and tends to hold valve 13vseated on flange 17 and thereby close discharge opening 16. Fixed toone end. of shaft 24 is an arm 27 which f `flange liwhich is adapted tobe positioned against the end of casting 12 and close the annular spaces12b. Projecting inwardly from each flange 31 is a pair of longitudinaldianietrically disposed lugs 32 provided with open slots 34 which, whenrings 30 are in position on'pipesk 10 and 11, engage diametricallydisposed radial lugs 35 projecting outwardly from the ends of casting12. rlhe ends of rings are bent outwardly to form ears 30a and seated inthese ears are bolts 36 having nuts 37. j

ln assemblingl the muflier cut-out in position, a short section of theexhaust pipe is cut away, leaving ends 10 and 11. Clamping rings 30 arethen threaded on each end 10` and 11 and casting 12 is then positioned von pipe 10 a sufficient distance to permit the insertion of end 11 intothe opposite end of casting 12, after which casting 12 is moved forwardon pipe 11 until the end of pipe 11 engages lug 20 formed on one of theini ner annular flanges 12a. Rings 30 are moved toward the ends ofcasting 12 so that slots 34 engage lugs 35, and flanges 31 close theends of casting 12. Rings 30 are now clamped vin position on pipes 10and 11 by tightening nuts 3'? on bolts 36. Packing 19, which has beentamped into the annular chambers 12b after casting 12 has been properlypositioned onpipes 10 and 11 and before links 30vwere clamped on saidpipes,

y vforms an air-tight joint and prevents the escape of gases from theexhaust pipe.

Normally, valve 18 is seated on annular flange 17 by spring 26 engagingarm 22. When arm 27 is operated, arm 22 is rocked, causing its valvecarrying end to move inwardly and upwardly, thereby seating valve 18against seat 14L and connecting chamber 15 with the atmosphere throughopening 16. Housing 21 encloses the outer end of arm 22 and preventscarbon and dust from collecting in bearings 22a. v`Valve 18 can beplaced in chamber 15 in any suitable manner, preferably by embeddingsaid valve in the sand core which is used in the manufacture of casting12.

In the modified form shown in Figure 6, one leg 39 of the slotted lug 40is extended as shown in dotted lines, so that the end of said leg can bebent and folded against the shortleg 41, as shown in full lines, therebyclosingk the open end of slot 34 and retaining the slots 84, ,rings 30are positively locked to casting 12. To-remove ring 30, the bent ends oflegs 39 can be straightened so as to permit the withdrawal of lugs 35from slots 34.

A muler cut-out of my improved construction is simple and durable,requires few parts, will positively seal the exhaust chainbers to theatmosphere, and is inexpensive to manufacture. v f

Obviously, various changes and arrangement of parts can be made andsubstituted for those herein shown and described, without departing fromthe spirit of my invention, the scope of which is set forth in theappended claims.

What I claim is:

1. ln a muflier cut-out, a single piece casting adapted to beinterposedA in the exhaust pipe of an engine, said casting beingprovided witha transversevalve seat adjacent to its muliier end andhaving a discharge openino' formed in its wall, there being` an inwardlypresented annular flange formed in said casting and encircling saidopening, a valve adapted to be seated on said flange for closing saidopening, an arm pivotally mounted on the exterior of said casting andhaving its free end projecting thereinto through said' opening, flexibleoperative connection between said valve and said free end of said arm,resilient means for holding said valve on said annular flange, means foractuating said arm and moving said valve into engagement with saidtransverse seat,

and means adapted to be secured to said exhaust pipe adjacent to eachend of said casting for holding the latter against longitudinal androtative movements.

2. ln a mufiier cut-out, a tubular one piece casting adapted to beinterposed in the exhaust pipe of an engine, said casting having a valveseat formed transversely within said casting and adjacent to theinuliier end thereof, and a discharge opening formed substantiallyparallel with the longitudinal axis of said casting, an inwardlypresented annular flange formed onvthe lower face of said casting andsurrounding said discharge opening, a valve seated on said flange andadapted to close said opening, a marginal flange depending from saidvalve and enclosing the upper portion of said annular flange, a housingformed integral with and projecting outwardly from said valve, a pintransversely mounted in said housing and having its ends fixed in theside walls thereof, lugs projecting outwardly from the underside of saidcasting, a shaft j ournaled in said lugs, an arm one'end of which isfixed to said rod and whose opposite end extends into said housing andis provided withl convex side faces which bear against the Y iis LDI

seated, and means for actuating said shaft whereby said arm is movedinwardly into said casting through said discharge opening and seats saidvalve in said transverse seat.

3. In a muffler cut-out, a one piece tubular casting adapted to beinterposed in the eX- haust pipe of an engine and provided at its endswith annular chambers which are designed to receive packing, an inwardlypresentedannular flange formed on the lower face of said casting andsurrounding a discharge opening formed in said casting, a valve seatedon said flange and adapted to close said discharge opening, said valvehaving a marginal flange presented outwardly and downwardly of saidannular flange, a housing formed integral with and depending from saidvalve, a horizontally disposed pin ixed in said housing, a shaftjournaled in bearings formed on the exterior of said casting, an armfixed to said shaft and having its free end extended within saidhousing` and provided with a bearing for said pin whereby said valve ispivotally supported on said arm and permitted to rock so that it canalign itself with its seat, yielding means for holding said valve seatedon said annular flange thereby closing said discharge open-v ing, andmeans for operating said shaft to move said valve from its seat into aposition within said casting whereby the communication between theexhaust pipe and the muli er end of the casting is blocked.

et. ln a muffler cut-out, a one piece tubular casting adapted to beinterposed in the exhaust pipe of an engine and provided at its endswith annular chambers which are designed to receive packing, an inwardlypresented annular flange formed on the lower iace of said casting andsurrounding the discharge opening formed in said casting, a valve seatedon said flange and adapted to close said discharge opening, said valvehaving a marginal ange presented outwardly and downwardly of saidannular flange, a housing formed integral with and depending from saidvalve, a horizontally disposed pin fixed in said housing, a shaftjournaled in bearings formed on the exteriorl of said casting, an armfixed to said shaft and having its free end extended within said housingand provided with a knife edge bearing for said pin whereby said valveis pivotally supported on said arm and adapted to receive a rockingmovement so that it can align itself with its seat, yielding means forholding said valve seated on said annular flange thereby closing saiddischarge opening, means for operating said shaft and moving said valvefrom its seat into a position within said casting whereby communicationbetween the exhaust pipe and the muffler end of said casting is blocked,and split rings adapted to be clamped on said exhaust pipe to hold saidcasting against longitudinal and rotative movements.

5. ln a muiiier cut-out, a one piece tubular casting adapted to beinterposed in the exhaust pipe of an engine and provided at its endswith annular chambers which are designed to receive packing, an inwardlypresented annular flange formed on the lower face of said casting andsurrounding a discharge opening formed on said casting,

a valve seated on said flange and adaptedto close said dischargeopening, said valve having a marginal flange presented outwardly anddownwardly of said annular flange, a housing formed integral with anddepending from said valve, a horizontally disposed pin fixed in saidhousing, a shaft journaled in bearings formed on the exterior of saidcasting, an arm fixed to said shaft and having its free end extendedwithin said housing to form a rocking bearing for said pin so that saidvalve can align itself with its seat, yielding means for holding saidvalve seated on said annular flange thereby closing said dischargeopening., means for operating said shaft to move said valve from itsseat into a position within said casting whereby communication betweenthe exhaust pipe and the muffler end of said casting is blocked, splitrings adapted to be clamped on said exhaust pipe and having an outwardlypresented annular flange which is arranged to abut the ends of saidcasting and close the packing spaces formed therein, longitudinalinwardly presented lugs formed on said flange and provided with openslots, and lugs formed integral with the ends of said casting andprojecting radially therefrom and adapted to be engaged by slots in saidlugs when said rings are clamped in position on said exhaust pipe.

In testimony whereof I hereunto affix my signature this 28th day ofMarch, 1921.

RICHARD SCHEID.

